2 layers23.5 × 20 mm
MK4 Accelerometer
MCDELTAT/MK4_Accelerometer
Documentation and Designs for Accelerometers on the Prusa MK4 Printer
8 parts36
2 layers23.5 × 20 mm
MK4 Accelerometer
MCDELTAT/MK4_Accelerometer36Documentation and Designs for Accelerometers on the Prusa MK4 Printer
- Size
- 23.5 × 20 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 9
- Nets
- 12
- Pads
- 32
- Tracks, vias
- 105, 6
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 10 Mar 2024
- Updated
- 25 May 2024
Overview
MK4 Accelerometer is an open-source printed circuit board by MCDELTAT, from the MCDELTAT/MK4_Accelerometer repository on GitHub. It is a 2-layer board of 23.5 × 20 mm with 9 parts on 12 nets, routed with 105 tracks and 6 vias.
Its parts include 2 capacitors, 2 resistors, 1 IC, 1 diode and 1 connector. It belongs with the sensors and measurement boards and the NXP (LPC, Kinetis, i.MX RT) boards of this library.
README
Accelerometer PCBs/v0.1/README.mdPrusa MK4 Accelerometer v0.1
🛑 This board was submitted for reference, but it won't work without a custom cable. This is because I got the pins backwards on the Click-mate connector because I had crimped my own. When trying with a stock cable from Digikey, I noticed the error. This will be fixed in the next revision. In other words: don't try to make this one.
This is the bare minimum reference circuit as provided by STMicroelectronics, with an LED for reference.
BOM:
| Digikey Part Num | Quantity | Description |
|---|---|---|
| 1292-0201X104K250CT-ND | 1 | 0603 100nF Ceramic Capacitor |
| CL10A106MQ8NNNC | 1 | 0603 10uF Ceramic Capacitor |
| IN-S63AT5G | 1 | 0603 Green LED 525nm |
| RC0603FR-07120RL | 1 | 0603 120Ohm Resistor 1/10W |
| 5025840670 | 1 | Molex Clickmate 6Pin SMT Connector |
| LIS2DHTR | 1 | LIS2DHTR MEMS Accelerometer |
When aligning the LIS2DHTR by hand, make sure the circle is in the top right corner, matching the stars near the LGA-12 pads.
Parts
9| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | MountingHole_Pad | MountingHole:MountingHole_2.2mm_M2_Pad | H1, H2 |
| 1 | 100nF | Capacitor_SMD:C_0603_1608Metric | C1 |
| 1 | 10uF | Capacitor_SMD:C_0603_1608Metric | C2 |
| 1 | 120 | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | 2K2 | Resistor_SMD:R_0603_1608Metric | R2 |
| 1 | 5025840670 | Molex_5025840670:CON_5025840670_MOL | J1 |
| 1 | GREEN | LED_SMD:LED_0603_1608Metric | D1 |
| 1 | LIS2DH12TR | STMicroelectronics:LGA-12_STM | U1 |
Questions
How big is the MK4 Accelerometer PCB?
It measures 23.5 × 20 mm and has 2 copper layers, 1.6 mm thick.
What parts does the MK4 Accelerometer use?
9 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the MK4 Accelerometer KiCad files?
From the MCDELTAT/MK4_Accelerometer repository on GitHub, at the commit this page was made from: the board is Accelerometer PCBs/v0.2/MK4 Accelerometer.kicad_pcb and its schematic Accelerometer PCBs/v0.1/MK4 Accelerometer.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the MK4 Accelerometer design in my own project?
Its repository states no licence, so its author keeps all rights: ask MCDELTAT before reusing the design.
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